CVE-2018-0735
Timing attack against ECDSA signature generation
02 Description
Timing attack against ECDSA signature generation
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 4.72% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.4% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-08.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-10-29 13:00Z8 YR AGO
- Last updated
- 2026-10-08 21:13Z20 DAYS AGO
- Reserved
- 2017-11-30
- Assigning CNA
- openssl
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass
- Data version
- 5.2
- Document digest
- 6055823a5a55f397d069c286dbac9d068dc5383373df277f7fa66b064cb7cea0
05 Affected products
06 References
- git.openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1
- www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- www.securityfocus.com105750http://www.securityfocus.com/bid/105750
- usn.ubuntu.comUSN-3840-1https://usn.ubuntu.com/3840-1/
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20181105-0002/
- nodejs.orghttps://nodejs.org/en/blog/vulnerability/november-2018-security-releases/
- www.securitytracker.com1041986http://www.securitytracker.com/id/1041986
- lists.debian.org[debian-lts-announce] 20181121 [SECURITY] [DLA 1586-1] openssl security updatehttps://lists.debian.org/debian-lts-announce/2018/11/msg00024.html
- www.debian.orgDSA-4348https://www.debian.org/security/2018/dsa-4348
- git.openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4
- www.openssl.orghttps://www.openssl.org/news/secadv/20181029.txt
- www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- access.redhat.comRHSA-2019:3700https://access.redhat.com/errata/RHSA-2019:3700
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2020.html
07 Fixed in
Arch Linux
- lib32-openssl Fixed in 1:1.1.1.a-1
- openssl Fixed in 1.1.1.a-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- openssl Fixed in 1.1.1a-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- openssl Fixed in 1.1.1a-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- openssl Fixed in 1.1.1a-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- openssl Fixed in 1.1.0g-2ubuntu4.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.